Production of tyre cord and like yarn



May 26, 1959 F. RIDGWAY PRODUCTION OF TYRE CORD-AND LIKE YARN 6 Sheets-Sheet 1 Filed Nov. 12, 1954 I Fig.1

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" PRODUCTION OF TYRE CORD AND LIKE YARN Filed Nov, 12, 1954 I e Sheets-Sheet e lire/vam Ffiidjfuay W I I United States Patent Claims priority, application Great Britain November 16, 1953 4 Claims. 01. 57 -61) This invention has for its object to provide an improved machine or frame for producing" an improved quality of tyre cord or like yarn with aminimum of handling. A further object is to avoid loss of yarn such as occurs at present after the first process.

The invention consistsin a machine for producing tyre cord or like yarn comprising a plurality of uptwisting spindle with bobbins of single yarn thereon, with flyers on the spindles through which the yarn passes upwards to guides and delivery rollers, from which the yarn from the several uptwisting spindles passes as a single yarn through a lappet and traveller to a bobbin on a cabling spindle, with means for driving the uptwister spindles in one direction and the cabling spindle in the opposite direction and for varying the speed ofthe uptwisting spindles and of the delivery rollers relatively to the cabling spindle to obtainthef desired twist in the yarn. Means may also' be provided for braking the uptwisting and their cooperating cabling spindle simultaneously. i

The invention further consists in amachine as aforesaid comprising several units arranged-inline along each side of the machine with two cabling spindles between two sets of uptwisting;spindles" each unit consisting of a plurality of uptwisting spindlesand a'cabling spindle with guides and delivery rollers between.

The inventiomfurther consists in a machin'e as afore- 3 said comprising at each side in line twouptwister spindles, two cablingspindles, four uptwister spindles, two cabling spindles, followed by repeats of fourfuptwister spindles and two cabling spindles and finishing with two uptwister spindles after two cabling spindles.

The invention further consists in amachine ,asaforesaid incorporating a shaft with pulleysthereon for driving "all the cabling spindles of the machine, anothershaft with pulleys thereon for driving all the uptwisting spindles of the machine, the latter spindle being driven from the former through change speed gearing.

The invention further consists in a machine as aforesaid in which the delivery rollers are driven from the shaft driving the cabling spindles through change speed gearing.

Referring to the accompanying explanatory drawings:

Figure l is a front elevation of parts of a combined uptwisting and ring doubling machine constructed in accordance with this invention.

Figure 2 is a plan view of Figure 1.

Figure 3 is an end view of the two sides of a machine as shown in Figure 1, the view being taken where there are two uptwisting spindles.

Figure 4 is a plan view showing the drive to two uptwisting spindles at each side ofthe machine.

Figures 5 and 6 are end views similar to Figures 3 and 4 but taken where there are two doubling spindles, Figure 6 showing the drive to the two spindles.

Figures 7 and 8 show in plan and elevation respec- 2,887,840 Patented May 26, 1959 tively the drives to the respective spindles and to delivery rollers.

Figures 9 and 10 show in front and side elevationthe arrangement of brakes for stopping the uptwisting and cabling spindles of one unit simultaneously. e U

The single yarn, which may be upon double flanged bobbins a as received from a rayon or other spinner, such bobbins being mounted upon uptwisting spindles b, is uptwisted from the several yarn packages c, which may be two, three or four in number, so that a certain degree of additional twist is imparted to the yarn, the latter passing through fiyers d, lappet guides e, fixed guides f and rollers g which deliver the yarn through lappet guides 11 and travellers j, to ring twister or doubling cable spindles i located in line or parallel with the uptwister spindles at the same side of the machine and having suitable bobbins 3 thereon.

The uptwister spindles b are driven in a clockwise direction giving Z twist and the cabling spindles i are driven in an anti-clockwise direction giving a cabled yarn of S twist.

Figures 3 and/l show the drive to two uptwister spindles b at each side of the complete machine. The drive is by belt n driven by a pulley 0 on a shaft p, there being a suitably arranged jockey pulley at q to maintain the belt tension; The shaft 12, which has as many pulleys 0 thereon as there are sets of uptwister spindles b to be revolved, is rotated by change speed gears s from the shaft t which has pulleys u thereon (see Figures 5 and 6), each of which drives through a belt v, a pair of cabling spindles i. Either the ,shaft p or the shaft t is power driven, preferably from the end of the complete machine opposite to that at which the change speed gears s are situated. It will be noted from Figures 4 and 6, that the uptwisting spindles b are revolved in the opposite direction to the cabling spindles i. j

Oneconvenient arrangement of spindles along one side of a frame is two uptwister spindles, then two ring doubler spindles, four uptwister spindles, two ring doubler spindles, four uptwister spindles, followed by repeatsf of two ring doubler spindles and four uptwister spindles;

finishing with two uptwister spindles after two ring don bling spindles. Two-ply cable yarn would then be pro duced by the yarn from the first two uptwister spindles passing onto the first ring doubling spindle and the second ring doubling spindle being supplied by the next two uptwister spindles and so on. If three-ply cable yarn is required,jthen the first three uptwister spindles will supplythe first doubler spindle and the second doubler spindle will not be used. The fourth, fifth and sixth up twister spindles supply the third doubling spindle. The fourth doubling spindle is supplied by the following three uptwisting spindles and so on. When making fourply cable, only one of each pair of doubling spindles is used.

The arrangement of uptwister and cabling spindles shown in Figure 1 comprises two uptwister spindles b, and one ring doubler cabling spindle i working in cooperation with said uptwister spindles. There are then one ring doubler spindle i and two uptwister spindles working in cooperation. Any number of sets of cooperating nptwister and cabling spindles may be arranged along each side of the machine. A short ring rail w carries the rings of two adjacent ring spindles i and is raised and lowered by the one actuating mechanism which consists of a cam actuated lever x and what is known as a poker y, the ring rail w being guided by rods 2. 2 indicates separators to limit the ballooning of the yarn being drawn on to the bobbins 3. The arrangement shown is for producing two ply cabled yarn. For three ply yarn, there will be three uptwister spindles b for each cabling spindle i. In Figure l, the second uptwister spindle from the left and the two uptwister spindles beyond the cabling spindles i may, for three ply yarn, cooperate with one spindle i, the other cabling spindle i not being used. For four ply cable, only one of the two cabling spindles i will be used in cooperation with the four uptwisting spindles [1 shown in Figure 1.

The drive to the delivery rollers is shown in Figures 7 and 8. The main drive shaft 2 drives through gear wheels 2, 3, 4, 5, 6, 7, 8, 9 and 10, the shafts 11 of the bottom rollers g at the opposite sides of the machine. Such rollers g drive the other bottom rollers g by chains 12. The top delivery rollers are driven by engagement with the lower rollers in the usual Way. The three rollers at each side of the machine provide a double nip or trap for the yarns passing through them.

The threading of the yarn is from the uptwister bobbins a throughtheir flyers d and lappets 2, around guides f to the delivery rollers g, and through a lappet h to the traveller j on the ring j of the ring spindle bobbin.

The speed of the delivey rollers g can be changed by the gears 8, 9 and to vary the rate of delivery of yarn to the cabling spindles i to give the required turns per inch in the finished yarn or cord. To obtain the correct turns per inch in the yarn from the uptwisting bobbins c, it is necessary to adjust the speed of the uptwister spindles relatively to the main driving shaft 1. This is done by the change gears s.

As shown in Figures 9 and 10, a foot operated pedal 14 on a lever 15 pivoted at 16 is adapted when depressed to raise a cross member 17 which lifts two rods 18, 19. The rod 18 raises a cross bar 20 which at its ends, through an intermediate short rod 21 raises a member 22, which at its ends raises pins 23 adapted to turn brakes 24 pivoted at 25 so that such brakes engage the flanges 26 on the spindle wharves b and stop the spindles. Simultaneously the rod 19 through a cross bar 27 causes the tilting of the brakes of the cabling spindle so that such brakes engage the flange 28 on the spindle wharve i and stop the spindle. It will be appreciated that each unit comprising two uptwisting and one cabling spindle is braked by one pedal as 14. Whatever be the number of uptwisting spindles associated with a single cabling spindle, arrangements can be made for all the spindles of a. unit to be braked simultaneously.

In one example, a machine or frame can be of 7" gauge making a 5" flange bobbin of 8" lift containing 4% lbs of rayon tyre ,cord of 2 fold 1650 denier. In

this case two uptwister bobbins will produce two 5" flanged bobbins of cable yarn. When making a three or four-ply cable yarn, three or four full bobbins of such yarn will be produced for, one supply of uptwister bobbins.

As the uptwisting and cabling are done simultaneously at the same time side of a machine or frame, I am enabled to produce a tyre cord of good quality which has has a minimum of handling and with a minimum of waste yarn.

What I claim is:

1. A machine for producing tyre cord and the like yarn comprising a plurality of uptwisting spindles each having a bobbin thereon, a single cabling spindle, a bobbin on the cabling spindle, the yarn being delivered from the uptwisting spindles to the cabling spindle, the plurality of uptwisting spindles being disposed along each side of the machine in line with a cabling spindle so that two cabling spindles are disposed between two sets of uptwisting spindles, a fiyer on each uptwisting spindle, delivery rollers, a lappet, a traveller, the yarn from the bobbins of each set of uptwisting spindles passing through the -fiyers to the delivery rollers, being united at the delivery side of the delivery rollers, and through the lappet and traveller to the bobbin on a cabling spindle, mcans'driving all the uptwisting spindles in unison and in a direction opposite to the cabling spindle, means varying the speed of the uptwisting spindles and the delivery rollers rela- .tive to the cabling spindles to obtain the desired twist in the yarn and further means applying a braking effect simultaneously to each set of uptwisting spindles and its associated cabling spindle.

2. A machine as defined in claim 1 including at each side in line, two uptwisting spindles, two cabling spindles, four uptwister spindles, two cabling spindles, followed by repeats of four uptwisting spindles and two cabling spindles and terminating in two uptwisting spindles following two cabling spindles.

3. A machine as defined in claim 1 including a shaft, pulleys on such shaft to drive all of the cabling spindles, a second shaft, and pulleys on the second shaft to drive all of the uptwisting spindles and change speed gearing through which the uptwisting spindles are driven from the pulleys on the second shaft.

4. A machine as defined in claim 1 including a change speed gearing through which the delivery rollers are driven from the shaft driving the cabling spindles.

References Cited in the file of this patent UNITED STATES PATENTS 775,261 Tynan Mar. 22, 1904 794,427 Schmutz July 11, 1905 957,453 Agel et al. May 10, 1910 968,723 Whyte Aug. 30, 1910 1,390,081 Bonner Sept. 6, 1921 1,423,801 Hines July 25, 1922 

